An arginine tetrad as mediator of input-dependent and input-independent ATPases in the clock protein KaiC

The crystal structure of KaiC from Thermosynechococcus elongatus allows insight into the different anatomies of the CI and CII ATPases.

Structure of the nisin leader peptidase NisP revealing a C-terminal autocleavage activity

A high resolution crystal structure of the nisin leader peptidase NisP is reported, which revealing a C-terminal autocleavage activity.